...Non-magneticdrillcollars We supplyslick drillcollars,spiral drill collarsandnon-magneticdrillcollars; their sizes are from 3-1/8 to 11 inches. Besides the drillcollars in the table below, we can supply other drillcollars at customers' request. ...

... properties of corrosion resistance and excellent abrasion
performance. When MPS=1×105/4π A/m, its relatively magnetic permeabilityμr≤1.010 When any distance by the inner hole is 100mm,
its field gradient...

... then is machined to the final product. The material used for
the non-magneticdrillcollar is the austenitic non-magnetic steel produced by our works. The non-magneticdrillcollar, which quality was appraised by the Ministry of petroleum

...Browse similar products Previous: Drill pipe Next Spiral drillcollars Description Non- magneticdrillcollars According to API Spec.7 and SY/T5144, the non-magneticdrillcollars are made of low carbon stainless steel, which are researched and
developed ...

... weight (almost half of stainless steel), reduce the operation
difficulty. The most important characteristics is non-magnetic, completely replace the stainless steel which has the
disadvantages of micro magnetic. Mainly used